Easy to attach just by hooking. Sold as a set of 2. Size: Width 1.1cm, Height 2.7cm We have a large number of zippers for sale. Discounts are available for bulk purchases, so please consider. a-13 You can check other items for sale from the # below. *It may be difficult to adjust the lighting during photography, and the color of the actual product delivered may differ from the photos depending on the viewing angle and monitor resolution. There may be minor scratches etc. during the manufacturing process. Please understand this beforehand. #ALMA All Colors Zippers are here